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There are 20 cards. Ten of these cards h...

There are 20 cards. Ten of these cards have the letter `"I"` printed on them and the other 10 have the letter `"I"` printed on them. If three cards picked up at random and kept in the same order, the probability of making word IIT is `1//9,1//3` b. `1//16 ,1//4` c. `1//4,1//2` d. none of these

A

`(4)/(27)`

B

`(5)/(38)`

C

`(1)/(8)`

D

`(9)/(80)`

Text Solution

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The correct Answer is:
B
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OBJECTIVE RD SHARMA ENGLISH-PROBABILITY -Section I - Mcqs
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  2. What is the probability that the 13th days of a randomly chosen mon...

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  5. A die is rolled thrice, find the probability of getting a larger nu...

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  6. Hundred identical cards are numbered from 1 to 100. The cards are well...

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  7. Three six faced dice are tossed together, then the probability that ex...

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  8. A party of n ladies sit at a round table. Find odds against two specif...

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  9. A and B stand in a ring with 10 other persons . If the arrangement of ...

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  10. A person writes letters for his friends and addresses three envelops. ...

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  11. The sum of two positive quantities is equal to 2n. Find the probabilit...

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  12. If p is the probability that a man aged x will die in a year, then the...

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  13. If the letters of the word MISSISSIPPI are written down at random i...

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  14. If the letters of the word MISSISSIPPI are written down at random i...

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  15. If the letters of the word REGULATIONS be arranged at random, find t...

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  16. If the letters of the word REGULATIONS be arranged at random, find t...

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  17. A bag contains a white and b black balls. Two players, Aa n dB alterna...

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  18. Two number aa n db aer chosen at random from the set of first 30 natur...

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  19. Cards are drwn one by one without replacement from a pack of 52 cards....

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  20. If A and B are independent events, then A' and B' are also

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